xen/arm: Fix race in RB-tree based P2M accounting
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.53 by commit 9f83c8f6ab14bbf4311b70bf1b7290d131059101. For more details please see the references link.